Minebea CSD-891B User manual

DIGITAL INDICATOR
CSD-891B
Instruction Manual
EN294-1143-M

I
FOREWORD
Thank you very much for your purchasing our Digital Indicator CSD−891B.
This manual explains installation procedures and connecting method and also operating
method for the Digital Indicator CSD−891B. Make use of it properly after reading through
the manual carefully.
Be sure to deliver the manual to the end user. Moreover, the end user should keep the
manual at hand after reading it over.

II
Marks and arrangements used in this manual
The following marks are attached to the explanation on the matters that indicate “Don’t do
this.”, “Take care.” and “For reference”.
Be sure to read these items where these marks are attached.
Warning ●Warning may cause injury or accident that may harm to the operator.
Don’t do these things described here.
●Caution during operation and working.
Be sure to read the item to prevent malfunction.
Mark during operation.
●Press the switch.

III
For safe operation
Be sure to read this instruction manual before use.
1. Installation place
●Use the instrument where the temperature/humidity specifies with
the range as follows：
Environmental temperature ：−10 ℃to 50 ℃
Environmental humidity ：Less than 85 %R.H. (Non condensing)
(1) Location where installation is not allowed.
Warning ●Don’t locate the instrument on the places as follows :
It may cause an unexpected faulty in the instrument.
DDo not locate the instrument in direct and/or high temperature area.
DDo not use the instrument in a high humid area.
DDo not install the instrument where there are vibrations and shocks.
DDo not use the instrument where there is excess of dusts and fine particles.
DDo not use the instrument where there are corrosive gas and salt and like
that.
DDo not install the instrument where there is rapid change of temperature
and humidity.
DDo not install the instrument near the devices that are magnetized or
generate an electromagnetic field.
DDo not install the instrument where the instrument may be affected by
radioactivity or radial rays.
DAvoid the location where chemical reaction may take place such as in a
laboratory, or like that.

IV
(2) Installation
●When installing the instrument, install as referring to the following
figures and secure the space around the instrument.
Each dimensions of the instrument and required dimensions for the environmental
spaces are as follows:
Outline dimensions
Front Side
Unit：mm
43
44
67
208
200
140.7
185

V
2. Power supply
Warning ●Be sure to check that the power supply is off in connecting each cable.
If the work is done while the power is on, there may have the case that
electric shock to the operator or even may have damage to the
instrument.
●Before supplying the power, check that the indication of power supply
voltage/specifications for the instrument and the power going to
supply should be the same.
If they are not equal, contact us.
If you use the instrument without checking them, it may cause a
damage in the instrument or electric shock to the operator.
●Earth wire should be grounded securely.
When earth wire is not connected, it may cause a malfunction of the
instrument or electric shock to the operator.
3. Application note
Warning ●Before using a new instrument or exchanging the strain gage applied
transducer for a new one, be sure to make calibration. If calibration
will not be made, the correct measuring results may not be obtained
nor which may cause malfunction in the instrument and there may
exist damage in peripheral equipments.
Besides, even though calibration has been made, there may occur the
similar case when the results are not correct, so make calibration,
again.
Warning ●In case of using the instrument, check that the connections are
executed properly. If not connected properly, the correct measuring
result will not be obtained, nor it may cause malfunctions of the
instrument, damage to the peripheral equipments or even more
serious accidents.

VI
Warning ●When change of setting is made carelessly on the instrument during
measurement, correct measured results may not be obtained and it
may cause malfunction in the instrument and even have the
possibility of damage in peripheral instruments.
Warning ●Do not shock the instrument such as throwing something on it.
If neglected, it may cause destruction of the parts and damage to the
electrical circuits.
Warning ●Do not push the panel sheet on the instrument with the excessive
strong force nor push it with sharp edge object such as a driver.
If neglected, it may cause a damage to the panel switch and even have
the possibility of damage to resist to environments or operational
performances.
Warning ●Don’t remove the cover of the case of the instrument, nor peel off the
panel sheet nor take the instrument into pieces.
If neglected, it may cause a damage to the case and the panel sheet
and even have the possibility of damage to resist to environments or
operational performances.
●At the time of shipment from the factory, the instrument has been
plated with a clear sheet on the panel sheet for protective purpose.
In case of application, use the instrument after removing the
clearsheet first.

VII
History of revision
Date Instruction manual No. Details of revised point
Oct. 2001 DRW. NO.EN294−1143 Version ROM Ver. 1.000 or later
Jun. 2002 DRW. NO.EN294−1143-A
Due to ECN No.FN02−02066
−Change −
Wiring instruction seal affixation is changed right, and the
outline drawing is also changed.
−Additional −
8−2., 13−3. Add F−87
Sept. 2004 DRW. NO.EN294−1143-B
Due to ECN No.FN04−02111
−Change −
7−14. “The backup time is over ten years.” has
changed to “The backup time is about ten years.”
Apr. 2005 DRW. NO.EN294−1143-C
Due to ECN No.FN05−02035
−Addition −
At the warning column in the wiring section, the clause of “
As there is a case which standard wiring color is different,
please confirm the inspection data sheet of the load cell
being used.” is added.
Aug. 2005 DRW. NO.EN294−1143-D
Due to ECN No.FN05−02085
−Correction −
11−8. General specifications
Outline dimensions from “208 mm x 67 mm x 143 mm”
to “208 mm x 67 mm x 140.7 mm”
Jan. 2010 DRW.No.EN294-1143-E
Due to ECN No.FN10−02013
ROM Ver. 1.800 or later
−Addition −
8−2., 13−3. Add F−84
Feb. 2010 DRW.No.EN294-1143-F
Due to ECN No.FN10−02013A
−Addition −
8−2. F−84 “Restriction and warning” is added.
May. 2010 DRW.No.EN294-1143-G
Due to ECN No.FN10−02058B
−Addition −
7−3−1. Analog filter
7−7. Detection of stability
7−7−1. Range to detect stability
7−7−2. Time to detect stability
Due to ECN No.FN10−02026B
−Change −
Front cover logo is changed.
Oct. 2010 DRW.No.EN294-1143-H
Due to ECN No.FN10−02140
−Change −
MInebea logo is changed.

Date Instruction manual No. Details of revised point
Jan. 2011 DRW.No.EN294-1143-I
Due to ECN NO.FN11−02018
−Correction −
9−3−4.“DE−9S−N(JAE)”
to “DE−9S−NR by JAE or equivalent.”
May 2012 DRW.NO.EN294-1143-J Due to ECN No.FN10−02140−D −Change −
MInebea logo is changed.
Aug. 2012 DRW.NO.EN294-1143-K
Due to ECN No.FN12−02115
ROM Ver. 2.000 or later
−Change −
7−9
”104digit：Optional BCD output”
to ”104digit：Optional output(BCD output, CC−Link load
output, RS−232C load output, RS−422/485 load output)”
−Addition −
7−9 Caution is added.
−Correction −
7−9
”Comparator S1, S2 open collector output”
to ”Comparator S1, S2, S3 and S4 open collector output”
Feb.2018 DRW.NO.EN294-1143-L Due to ECN FN17-02017
・Delete the company name in the cover page.
・Delete the company name in the contents.
Jul.2018 DRW.NO.EN294-1143-M
Due to ECN FN18-02079
−Change −
10-3 Error display
･Remedy BAT.L/ER−B
SHIFT/ENTER to CHECK/FUNC.

INDEX
Forwards Ⅰ....................................................................
Marks and arrangements used in this manual Ⅱ....................................
For safe operation Ⅲ............................................................
1. Installation place Ⅲ.........................................................
2. Power supply Ⅴ............................................................
3. Application note Ⅴ.........................................................
History of revision Ⅶ............................................................
1. General 1.................................................................
1−1. Features 1............................................................
2. Name and function of each point 2..........................................
2−1. Front panel 2.........................................................
3. Installation procedures 4...................................................
3−1. Installation place 4....................................................
3−2. Location where installation is not allowed. 4.............................
3−3. Installation 5.........................................................
4. Connecting method 6......................................................
4−1. Layout of the terminal boards 6.........................................
4−2. Note on connection 7..................................................
4−3. Connection 8..........................................................
4−3−1. Connection with strain gage applied transducers 8..................
4−3−2. Connection with external control inputs 18..........................
4−3−3. Connection with open collector output 19...........................
4−3−4. Connection with the power supply and the earth 20...................
5. Calibration procedures 21...................................................
5−1. Preparations 21........................................................
5−2. Calibration procedures 21...............................................
5−2−1. Calibration method to register the output of strain gage applied transducer
at the time of maximum display after setting the load to zero. 22.......
5−2−2. Calibration procedures to register the output of strain gage applied
transducer at the time of zero and the maximum display 28............
5−2−3. Calibration method to register by reading output value
of strain gage applied transducer in the conditions
of zero/actual load application individually 34........................
5−2−4. Zero fine adjustment 41............................................
5−2−5. Span fine adjustment 44...........................................
5−2−6. Calibration procedure to apply registration again for zero point only 47
5−3. Calibration method by communication 51.................................
5−3−1. Calibration method by communication to register the output
of strain gage applied transducer at the time of maximum display
after setting the load to zero. 52....................................
5−3−2. Calibration procedures by communication to register the output of strain gage
applied transducer at the time of zero and the maximum display 57....
5−3−3. Calibration method by communication to register
by reading output value of strain gage applied transducer
in the conditions of zero/actual load application individu 62...........
5−3−4. Zero fine adjustment by communication 68..........................
5−3−5. Span fine adjustment by the communication 71......................
5−3−6. Calibration procedure by the commnunicaitonto apply registration
again for zero point only 74........................................
5−4. Selection of calibration methods on each condition 77
......................

5−4−1. In case of executing the calibration on the instrument newly. 77.......
5−4−2. When the calibration is executed again 81...........................
5−5. Setting the prohibition against calibration 81..............................
6. Operation procedure 82.....................................................
6−1. key 82............................................................
6−1−1. Operations in Measurement mode 82...............................
6−1−2. When operating in the other mode 82...............................
6−2. key 82............................................................
6−2−1. When operating in the measurement mode 82........................
6−2−2. Operation is made in the other mode 83.............................
6−3. key 83............................................................
6−3−1. Operation is made in the measurement mode 83......................
6−3−2. Operation in the other mode 83.....................................
6−4. key 84............................................................
6−4−1. Operation in the measurement mode 84.............................
6−4−2. Operation in the other mode 84.....................................
6−5. key 84............................................................
6−5−1. Operation in the measurement mode 84.............................
6−6. key 84............................................................
7. Function and operation 85...................................................
7−1. External control input signal and Open collector output signal 85...........
7−1−1. External control input signal 85....................................
7−1−2. Open collector output signal 86.....................................
7−1−3. Equivalent circuit 87..............................................
7−2. Comparator 87.........................................................
7−2−1. ON/OFF for the Comparator S0, S1, S2, S3 and S4. 87................
7−2−2. Change of set value 88.............................................
7−2−3. Operation on comparator S1, S2, S3 and S4 90.......................
7−2−4. Comparative target for comparator S1, S2, S3 and S4 91..............
7−2−5. Operation of comparator S0 92.....................................
7−2−6. Hysteresis on comparator 95.......................................
7−3. How to use the filter 97.................................................
7−3−1. Analog filter 97...................................................
7−3−2. Digital filter 97...................................................
7−4. Selection of A/D sampling rate 98........................................
7−5. Zero tracking 98........................................................
7−5−1. What is zero tracking? 98..........................................
7−5−2. Setting related with zero tracking 99................................
7−5−3. Cancellation for compensation by zero tracking 100...................
7−6. Stabilized filter 100......................................................
7−6−1. What is the Stabilized filter? 100.....................................
7−6−2. Setting related with the Stabilized filter. 101..........................
7−7. Detection of stability 102.................................................
7−7−1. Range to detect stability 102........................................
7−7−2. Time to detect stability 102.........................................
7−8. Various kinds of functions related with the display 103......................

7−8−1. Selection of display rate 103.........................................
7−8−2. Selection of decimal point display position 103........................
7−8−3. Load display range 103.............................................
7−9. Selection the target for HOLD 103.........................................
7−10. Change of bridge power supply voltage 104.................................
7−11. Tare weight cancellation (A/Z) 105........................................
7−12. Zero set 105.............................................................
7−13. Key lock function 105....................................................
7−14. CHECK value 106.......................................................
7−15. Record place of set data etc. 106...........................................
7−16. Prohibition of calibration 106.............................................
7−17. Check mode 107.........................................................
7−17−1. Operating procedure for the check mode 107..........................
7−18. Monitor mode 115.......................................................
8. Function mode 118..........................................................
8−1. Setting method for function mode 118.....................................
8−2. Function of Function data 121............................................
9. Options 130.................................................................
9−1. Analog output 130.......................................................
9−1−1. Relative function 131...............................................
9−1−2. Specification of current output 131..................................
9−1−3. Specification of voltage output 131...................................
9−1−4. Connection of the current output 132................................
9−1−5. Connection with the voltage output 133..............................
9−1−6. Scaling of analog output 134........................................
9−1−7. Fine adjustment 1 on analog output 135..............................
9−1−8. Fine adjustment 2 on analog output 138..............................
9−2. BCD output 141.........................................................
9−2−1. Related function 141...............................................
9−2−2. Specifications for BCD output 141...................................
9−2−3. Pin configurations for the BCD output connector 142..................
9−2−4. Equivalent circuit for input/output 143...............................
9−2−5. Timing chart 144..................................................
9−2−6. Output condition 145...............................................
9−2−7. Selection of output logic for P.C.(Print command), and of its width 146...
9−3. RS−232C interface 147..................................................
9−3−1. Related function 147...............................................
9−3−2. Specifications for interface 147
......................................
9−3−3. Procedures of data transfer 148......................................
9−3−4. Pin configurations for connector pin 149.............................
9−3−5. Data format 150...................................................
9−3−6. Communication error process 164...................................
9−4. RS−422/485 interface 165................................................
9−4−1. Related functions 165..............................................
9−4−2. Specifications on interface 166......................................
9−4−3. Procedure of data transmission 166..................................
9−4−4. Pin configurations for connector pin 167.............................
9−4−5. Data format 169...................................................
9−4−6. Communication error process 183...................................
10. Trouble shooting 184........................................................

10−1. Execute trouble shooting 185.............................................
10−2. Optional check 193......................................................
10−3. Error display 201........................................................
11. Specifications 203...........................................................
11−1. Specifications for analog section 203.......................................
11−2. Specifications for digital section 203.......................................
11−3. Front panel sheet key function 204........................................
11−4. External control function 204.............................................
11−5. Comparator function 204.................................................
11−6. Open collector output signal 205..........................................
11−7. Various kinds of functions 205............................................
11−8. General specifications 205................................................
11−9. Standard specifications at the shipment 206................................
11−10. Accessories 206..........................................................
11−11. Options 206.............................................................
11−11−1. Analog output 206.................................................
11−11−2. BCD output 207...................................................
11−11−3. RS−232C interface 207.............................................
11−11−4. RS−422/485 interface 208..........................................
11−12. Outline dimensions 208..................................................
12. Warranty 209................................................................
12−1. Warranty 209...........................................................
12−2. Repair 209..............................................................
13. Appendix 210................................................................
13−1. Replacement of fuse 210..................................................
13−2. Character’s pattern for display 213........................................
13−3. Setting table for functions 214............................................

1
1. General
The instrument is a digital indicator for the application of strain gage applied transducer.
1−1. Features
Main features for CSD−891B are as follows :
(1) Compact size
The size of 208 mm×67 mm×143 mm is suitable for storage in the board.
(2) Non−linearity
Display 0.01 %F.S.
(3) High speed sampling
High speed sampling as 200 times/s

2
2. Name and function of each point
2−1. Front panel
①
③
②
④
⑤
⑩⑥
⑦
⑧
⑨
⑪
⑫
1Load display section
The load data is shown in the Measurement mode, and status or set value is shown in various
kinds of Calibration mode and Setting mode.
2Judgement display
Compared results by comparator function can be displayed.
3Status display
RUN Lights up in the measurement mode.
A/Z Lights up in executing the tare weight cancellation (A/Z ON).
Lights off after clearing the tare weight cancellation (A/Z OFF).
LOCK Lights up when the input between the HOLD and COM. at the external control is
shorted. During light on, any key operation is prohibited.
HOLD Lights up when the input between the HOLD and COM. at the external control is
shorted.
CHECK Lights up when the CHECK is turned on by pressing the key together with
the key.

3
4key
Using for executing the tare weight cancellation(A/Z ON).
5key
Using for clearing the tare weight cancellation(A/Z OFF).
6key
Using for calling the change mode of the set value, or carry up the numeric in the various
setting.
7key
Using for executing the zero set(one touched zero adjustment), or the numeric increment in
the various setting.
8key
Using for shifting to the function mode.
Also, using for turning on/off of the check value by pressing the key together with the
key.
9key
Using for registering the set values at the time of various settings.
Also, using for turning on/off the check value by pressing key together with the key.
10 Terminals
Connects with the external control input, the open collector output, the strain gage applied
transducers, such as load cell, the analog output, the AC power supply, and ground.
11 Optional products attaching portion
One option either of BCD−OUT, CC−LINK, RS−232C, or RS−422/485 is installed.
The cover is installed when there is no optional products.
12 Position where unit seal is pasted
Please put the unit seal of the attachment if necessary.

4
3. Installation procedures
3−1. Installation place
●Use the instrument where the temperature/humidity specifies within
the range as follows:
Environmental temperature ：−10 ℃to 50 ℃
Environmental humidity ：85 %RH or less(Non condensing.)
3−2. Location where installation is not allowed.
Warning ●Don’t locate the instrument on the places such as follows:
It may cause an unexpected faulty in the instrument.
DDo not expose the instrument in direct sunlight and/or high temperature area.
DDo not use the instrument in a high humid area.
DDo not install the instrument where there is high mechanical vibrations and shock.
DDo not use the instrument where there are excess of dusts and fine particles.
DDo not install the instrument where there include any corrosive gas or any salty
atmosphere.
DDo not install the instrument where there is rapid change of temperature and humidity.
DDo not install the instrument near the devices that are magnetized or generate an
electromagnetic field.
DDo not install the instrument where there may suffer radioactivity or radioactive rays.
DAvoid the location where chemical reaction may take place such as in a laboratory, or like
that.

5
3−3. Installation
●When installing the instrument, install as the following figures and
secure the space around the instrument.
Each dimensions of the instrument and required dimensions for the environmental spaces are as
follows:
Outline dimensions
Front Side
Unit：mm
43
44
67
208
200
140.7
185

6
4. Connecting method
4−1. Layout of the terminal boards
There is the terminal boards, which has 27 points of terminals.
Layout of terminal boards are shown in the following figure.：
Terminal
No. Descriptions Applications Terminal
No. Descriptions Applications
1 E(Shield)
Strain
gage
15 COM.
Common for
external control
input and open
collector output
2 D(Amplifier input ＋)
Strain
gage
applied
d
16 RUN
3 A(Bridge power supply ＋)transducer 17 ERROR
4 B(Amplifier input −) 18 SO
5 F(Sensing ＋) 19 S1 Open collector
tt
6 A−OUT ＋Analog output 20 S2 output
7 G(Sensing −)
Strain gage
applied
transducer
21 S3
8 A−OUT −Analog output 22 S4
9 C(Bridge power supply −)
Strain gage
applied
transducer
23 N.C.
10 ZERO 24 SOURCE AC power supply
11 HOLD 25 N.C.
12 A/Z External
control
output
26 SOURCE AC power supply
13 A/Z OFF
con
t
ro
l
ou
t
pu
t
27 Ground
14 LOCK
●The COM.(Terminal No.15) is common for the external control input
(Terminal No.10〜14) and the open collector output(Terminal No.16
〜22).
●Don’t connect with N.C. terminals(Terminal No.23 and 25).